Data from the Global Volcanism Program of the Smithsonian Institution
Details for: Cuicocha
The scenic lake-filled Cuicocha caldera is located at the southern foot of the sharp-peaked Pleistocene Cotacachi stratovolcano (top center) about 100 km north of Quito. Farmer's fields encroach on the rim of the 3-km-wide caldera, which was created during a major explosive eruption about 3100 years ago. Dacitic lava domes form two forested islands in the caldera lake. Pyroclastic-flow deposits from the caldera-forming eruptions cover wide areas in now populated areas below the low-rimmed caldera. Photo by Patricio Ramon, 2003 (Instituto Geofisca, Escuela Politecnica Nacional).
Volcano Number:352003
Volcano Name:Cuicocha
Volcano Type:Caldera
Last Eruption:650 CE
Tectonic Setting:Subduction zone / Continental crust (> 25 km)
Pop. within 5km:178815
Pop. within 10km:178815
Pop. within 30km:364146
Pop. within 100km:3193683

Eruption Data from the Global Volcanism Program of the Smithsonian Institution
Volcano Number Volcano Name Eruption Number Activity Type Explosivity Index Max Explosivity Index Modifier Activity Area Activity Unit Start Evidence Method Start Date End Date
352003 Cuicocha 11391 Confirmed Eruption Radiocarbon (uncorrected) -2550
352003 Cuicocha 11392 Confirmed Eruption 5 Radiocarbon (uncorrected) -1150
352003 Cuicocha 11393 Confirmed Eruption Radiocarbon (uncorrected) -950
352003 Cuicocha 11394 Confirmed Eruption Radiocarbon (uncorrected) 650
Emissions Data from the Global Volcanism Program of the Smithsonian Institution
Sorry. No emissions data found for this volcano.

Data from the Earthchem Library
Sorry. No data exist for this volcano in the EarthChem Library.
Data from the Earthchem Portal

Data from the SESAR Database

Data from the MaGa Database
Location: Cuicocha caldera (View Details at MaGa DB)
Description: The Cuicocha volcanic caldera lake is located on the Western Cordillera, some 110 km to the north of Ecuador's capital Quito and represents besides Quilotoa, one of the two active volcanic lakes in Ecuador. Post-volcanic activities are expressed by the emission of volcanic gases in different parts of the lake in the form of gas bubbles and some dead vegetation as result of these gases, in the northernmost side of the eastern volcanic island. An input of hydrothermalwater and gas emission in the form of gas bubbles rising from the lake bottom are the most recent volcanic activity reported in Cuicocha.
Hazard Description: not reported
Type: lake
Region: Imbabura Province, Ecuador
Country: Ecuador
Volcanic Complex: Cuicocha caldera
Gas Flux Data:
Measurement Name Detail Date Specie Flux Std. Dev. Unit of Measure
Cuicocha_01072006 Detail 2006/07/01 CO2 106 0 Mg/d